📄 queryteachinginformationaction.java

📁 学生信息管理系统

💻 JAVA

字号:

package action;
import java.io.*;
import java.util.*;
import vo.TeachingVO;
import dao.TeachingDAO;
import javax.servlet.*;
import javax.servlet.http.*;
import util.CharsetExchange;
public class QueryTeachingInformationAction extends HttpServlet
{
	public void doGet(HttpServletRequest request,HttpServletResponse response)throws IOException,ServletException
	{
		String teacher_id=CharsetExchange.ISOToGB(request.getParameter("teachers"));
		TeachingDAO teachingdao=new TeachingDAO();
		boolean isexist=teachingdao.checkTeacher(teacher_id);
		if(isexist)
		{
			ArrayList teachingInfors=new ArrayList();
			teachingInfors=teachingdao.getTeachingByTeacherId(teacher_id);
			HttpSession session=request.getSession(true);
			session.setAttribute("teachingInfors",teachingInfors);
			this.getServletContext().getRequestDispatcher("/QueryTeachingInformationResult.jsp").forward(request,response);
			
		}
		else
		{
			response.setContentType("text/html");
			response.setCharacterEncoding("gb2312");
			PrintWriter out=response.getWriter();
			out.println("<html>");
			out.println("<head><meta http-equiv=refresh content=2;url=QueryTeachingInformation.jsp>");
			out.println("<title>查询教师任课信息</title></head>");
			out.println("<body background=2.jpg>");
			out.println("<br><br><br>");
			out.println("<h1 align=center ><font color=red>对不起，该教师用户不存在，无法查询</font></h1><hr>");
			out.println("<br><br>");
			out.println("</body>");
			out.println("</html>");
		}
	}
	public void doPost(HttpServletRequest request,HttpServletResponse response)throws IOException,ServletException
	{
		doGet(request,response);
	}
}

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